Collector Assault Rifle

The Dark Horse-published Art of the Mass Effect 3 Universe book includes in-game bonuses. Readers will earn themselves a DLC code for the Collector Assault Rifle, which also came as a bonus in the Mass Effect 2 Collector's Edition. You can only score this PC- and Xbox 360-exclusive weapon (and other unspecified content) by pre-ordering The Art of the Mass Effect Universe from Barnes & Noble before February 20, 2012.